legislation_cosponsors: 99-hres-407, B000392

Cosponsors for tracked legislation. Distinguishes original cosponsors (signed on at introduction) from later additions. Linked to congress_members via bioguide_id.

This data as json

bill_id	bioguide_id	full_name	party	state	sponsorship_date	is_original_cosponsor
99-hres-407	B000392	Rep. Bentley, Helen Delich [R-MD-2]	R	MD	1986-04-15	0